Before writing any code, plan out the implementation of the new Notifications feature. - List each step required to add email notifications when a task is overdue. - Consider both frontend (UI changes, if any) and backend (creating scheduled checks or triggers) aspects. - Ensure the plan keeps the current functionality stable – we can’t break anything existing. - Provide the plan as an ordered list (1, 2, 3, ...), with a brief explanation of each step. Once you outline the plan, pause for review. Do not make any code changes yet.